Will resizing lower the quality?

Making an image smaller looks clean. Enlarging it stretches the existing pixels, so it will appear softer.

Can I resize several images at once?

This tool handles one image at a time so you can check each result before downloading.

What size should a social profile picture be?

A square of 400 × 400 pixels or larger works well on most platforms.

ToolNova

Image Resizer

Resize any picture to exact pixel dimensions, with an option to lock the aspect ratio so nothing looks stretched.

Choose an image to resizeEverything happens on your device.

How to use the Image Resizer

1Pick the image you want to resize.
2Type the width or height you need — the other value follows automatically when the ratio is locked.
3Press Resize, check the preview and download the new file.

About this tool

Resizing redraws the picture at new dimensions using high-quality smoothing. Reducing size is essentially lossless to the eye; enlarging beyond the original dimensions cannot invent detail and will look softer.

PNG files stay PNG so transparency survives, while other formats are saved as high-quality JPEG.

Benefits

Exact dimensions
Hit a specific pixel size for a profile picture, thumbnail or banner.
Ratio lock
Keep proportions intact, or unlock to stretch deliberately.
Nothing leaves your device
The work happens inside your browser, so your files and text stay private.
Works on your phone
The layout, buttons and inputs are built mobile-first and are fully keyboard accessible.